After moving to New York, Glenn studied briefly at the Drummer's Collective, with Duduka Da Fonseca, Frank Malabe, Ricky Sebastian and Bob Weiner. He later studied privately with the great Joe Morello.

Glenn's compositions have been featured on WGPR-TV and WGPR-FM; The Better Than Average Stupid Variety Show; Night Light TV; the videos Concrete, Arachnovision, Silent Voices, and Paul William Hodge; and the documentary film I'm Dangerous With Love.

Some of the artists Glenn Johnson has performed with:
Ron Anderson | Best Batch Yet: A Tribute to Captain Beefheart | The Big Bang Ensemble | Oren Bloedow | The Burning Sensation | Johnny Continental | Cosmosis | Robin DeLorenzo | Bob DelRosso | Big Mike DeVita | The Dildos | Rev. Jim Dillman | The EeeE | Wild Man Fischer | Gay Architects | Joey George | Salena Godden | Smilin' Bill Hazel | The Highland Park Symphony | Jersey Jump | Max Johnson | Kevin Kiley | V.D. King | Chris Koch's Crackpot Theory | Leisure Class | Jeanne Lozier | Linear Expansion | Magic Red & the Voodoo Tribe | Maxim Bass | Moose & the Bullet Proof Blues Band | Mr. Unique & the Leisure Suits | No Name James | Oola Boosh | Rob Paparozzi | Popa Chubby | The Poor Man's Opera | Bobby Radcliff | The Roadside Banditos | Perry Robinson | The Rockin' Daddies | Ed Rollin | The Running Dog Band | SaltPeanuts | The Scandinavian Symphony | Eryn Shewell | Dean Shot | John Sinclair | The Sirens | The Slippery Chickens | The Slugs | Still Better Than the Beatles: A Tribute to the Shaggs | Sweet Willie D | TJQ | Joe Taino | James "T" Tillson | Toothless Vengeance | Miguel Weissman | Stefan Zeniuk